[Gallstone duodenal obstruction or Bouveret's syndrome. Apropos of two cases].

Bouveret's syndrome is a rare form of Gallstone Ileus, characterized by its duodenal site after migration through a cholecysto-duodenal fistula in almost all cases. The two cases reported emphasize the interest of endoscopy in its early diagnosis. A therapeutic schema is proposed, based upon a systematic initial endoscopic extraction trial. The surgical treatment when needed is discussed in its modalities, and adapted to a reasonable evaluation of general and local conditions.